““Time’s running out, Voldemort’s getting nearer. Professor, I’m acting on Dumbledore’s orders, I must find what he wanted me to find! But we’ve got to get the students out while I’m searching the castle--it’s me Voldemort wants, but he won’t care about killing a few more or less, not now--” not now he knows I’m attacking Horcruxes , Harry finished the sentence in his head. “You’re acting on Dumbledore’s orders?” she repeated with a look of dawning wonder. Then she drew herself up to her fullest height. “We shall secure the school against He-Who-Must-Not-Be-Named while you search for this--this object.” “Is that possible?” “I think so,” said Professor McGonagall dryly, “we teachers are rather good at magic, you know.””